Hertzsprung- Russel Diagram: a scatter graph of stars showing the relationship between the stars' absoute magnitudes or luminosities Magnitude: greatness of size and amount Luminosity: the intrisitic brightness of a celestial object Nebula: a cloud of dust and gas in outer space Main Sequence: The main sequence is a continuous and distinctive band of stars that appear on plots of stellar color versus brightness. Giant: Of very great size or force. Super Giant: a very large star that is even brighter than a giant, often despite being relatively cool. Supernova: a star that suddenly increases greatly in brightness because of a catastrophic explosion that ejects most of its mass. Dwarfs: cause to seem small or insignificant in comparison. Galaxy: a system of million or billion of stars, together with gas or dust, held together by gravitational attraction. Fusion: the process or result of joining two or more things together to form a single entity. Black Hole: a region of space having a gravitational field so intense that no matter or radiation can escape. Neutron Star: a celestial object or very small radius and very high density Protostar: A contracting mass of gas that represents an early stage in the formation of a star, before nucleosynthesis has begun. Scientific Theory: a theory that explains scientific observations Big Bang Theory: a theory that the universe originated sometime between 10 billion and 20 billion years ago. Light Years: a unit of astronomical distance equivalent to the distance that light travels in one year Light Second: The distance light travels in a vacuum in one second Main Sequence: The main sequence is a continuous and distinctive band of stars that appear on plots of stellar color versus brightness Luminosity: The intrinsic brightness of a celestial object Hertzsprung Russell Diagram: The Hertzsprung–Russell diagram is a scatter graph of stars showing the relationship between the stars' absolute magnitudes or luminosity versus their spectral types or classifications and effective temperatures
Magnitude: greatness of size and amount
Luminosity: the intrisitic brightness of a celestial object
Nebula: a cloud of dust and gas in outer space
Main Sequence: The main sequence is a continuous and distinctive band of stars that appear on plots of stellar color versus brightness.
Giant: Of very great size or force.
Super Giant: a very large star that is even brighter than a giant, often despite being relatively cool.
Supernova: a star that suddenly increases greatly in brightness because of a catastrophic explosion that ejects most of its mass.
Dwarfs: cause to seem small or insignificant in comparison.
Galaxy: a system of million or billion of stars, together with gas or dust, held together by gravitational attraction.
Fusion: the process or result of joining two or more things together to form a single entity.
Black Hole: a region of space having a gravitational field so intense that no matter or radiation can escape.
Neutron Star: a celestial object or very small radius and very high density
Protostar: A contracting mass of gas that represents an early stage in the formation of a star, before nucleosynthesis has begun.
Scientific Theory: a theory that explains scientific observations
Big Bang Theory: a theory that the universe originated sometime between 10 billion and 20 billion years ago.
Light Years: a unit of astronomical distance equivalent to the distance that light travels in one year
Light Second: The distance light travels in a vacuum in one second
Main Sequence: The main sequence is a continuous and distinctive band of stars that appear on plots of stellar color versus brightness
Luminosity: The intrinsic brightness of a celestial object
Hertzsprung Russell Diagram: The Hertzsprung–Russell diagram is a scatter graph of stars showing the relationship between the stars' absolute magnitudes or luminosity versus their spectral types or classifications and effective temperatures